REQ 412425 Drawings Compiled - 3.pdf

PDF 2 MB Posted Jun 9, 2010

Attached to: RECOVERY-Emigrant Creek Ranger District Office Addition, Hines, Oregon.
Solicitation number: AG-0489-S-10-0514
Issued by: Department of Agriculture Forest Service Washington Office Economic Recovery Operations Center Northwest

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Drawings Attachment 3

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File	Type	Posted
Asbestos Survey_FinalReport.pdf	PDF	Jul 9, 2010
AG-0489-S-10-0514 Amend 1.pdf	PDF	Jul 9, 2010
REQ 412425 Drawings Compiled - 5.pdf	PDF	Jun 9, 2010
REQ 412425 Drawings Compiled - 4.pdf	PDF	Jun 9, 2010
REQ 412425 Drawings Compiled - 2.pdf	PDF	Jun 9, 2010
AG-0489-S-10-0514 Sol. Package.pdf	PDF	Jun 9, 2010
REQ 412425 Drawings Compiled - 1.pdf	PDF	Jun 9, 2010
Compiled Specs.pdf	PDF	Jun 9, 2010

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DATE

PROJECT NAME

SHEET TITLE

PROJECT:

DRAWN BY:

CHECK:

497 SW Century Drive Suite 105 Bend, OR 97702 Tel. 541.330.6506 admin@ggl-arch.com

CONSULTANTS

T C

N G

A D

2010/04/26

H W

A Y

O U

O N

100% SET

2010/05/06100% SET Revised

1/2"

1/ 2"

M A

1/ 2"

M A

D O

O R

A N

D W

O W

0941_A901_Details

05 0113 09

06 0214 10

07 03

15 11TYP. DOOR THRESHOLD @ INT. DOOR TYP. DOOR THRESHOLD @ EXT. DOOR

TYP. DOOR JAMB @ INT. DOOR TYP. DOOR JAMB @ EXT. DOOR

TYP. WINDOW SILL TYP. WINDOW SILL @ REPLACEMENT WINDOW

TYP. DOOR HEAD @ INT. DOOR TYP. DOOR HEAD @ EXT. DOOR

TYP. WINDOW JAMB TYP. WINDOW JAMB @ REPLACEMENT WINDOW

TYP. WINDOW HEAD TYP. WINDOW HEAD @ REPLACEMENT WINDOW

SCALE: 3/4" = 1'-0"

SCALE: 3" = 1'-0" SCALE: 3" = 1'-0"

GGL

A901

NOTE: SEE 01/A801 FOR TYP. FLASHING SEQUENCE

TYP. JAMB @ REMOVED WINDOW

TYP. DOOR JAMB @ 2 HR WALL

TYP. DOOR HEAD @ 2 HR WALL

SCALE: 3" = 1'-0"

TYP. JAMB @ REMOVED WINDOW

(E) WALL

REMOVE (E) WINDOW, REPLACE W/

VINYL WINDOW REMOVE

NAILING FLANGE AND ATTACH THRU SILL

(E) INT. TRIM

CONT. BACKER ROD

AND SEALANT, TYP

(E) WALL SHEATHING

AND SIDING

PPM SILL FLASHING

SHIM AS NEEDED

CONT. SEALANT BED

(E) EXT. TRIM

PLACE WINDOW IN CONT. BED

OF SEALANT

(E) EXT. TRIM

REMOVE (E) WINDOW, REPLACE W/

VINYL WINDOW REMOVE

NAILING FLANGE AND ATTACH THRU JAMB

CONT. BACKER ROD AND SEALANT

CONT. BACKER ROD AND SEALANT, TYP.

CONT. BACKER ROD AND SEALANT

SHIM AS NEEDED

(E) INT. TRIM

(E) WALL

PLACE WINDOW IN CONT. BED

OF SEALANT

(E) EXT. TRIM

REMOVE (E) WINDOW, REPLACE W/

VINYL WINDOW REMOVE

NAILING FLANGE AND ATTACH THRU HEAD

CONT. BACKER ROD AND SEALANT, TYP.

CONT. BACKER ROD AND SEALANT

SHIM AS NEEDED

(E) INT. TRIM

(E) WALL

PLACE WINDOW IN CONT. BED

OF SEALANT

1X4 TRIM, TO MATCH (E)

VINYL WINDOW

CONT. BACKER ROD AND SEALANT, TYP.

CONT. BACKER ROD AND SEALANT

SHIM AS NEEDED

CONT. GYP. BD. INTO OPENNING

SCHEDULED EXT. WALL

(E) HEADER

PLACE WINDOW IN CONT. BED

OF SEALANT

1X4 EXT. TRIM, TO MATCH (E)

VINYL WINDOW

CONT. BACKER ROD AND SEALANT, TYP.

CONT. BACKER ROD AND SEALANT

SHIM AS NEEDED

CONT. GYP. BD. INTO JAMB

SCHEDULED EXT. WALL

MOISTURE BARRIER,

SHOWN DASHED,

CONT. INTO JAMB.

SCHEDULED EXT. WALL

VINYL WINDOW

5/4 X 4 MDF INT. TRIM,

PAINTED

CONT. BACKER ROD

AND SEALANT, TYP

SHIM AS NEEDED

CONT. SEALANT BED

1X4 EXT. TRIM, TO MATCH (E)

CONT. BACKER ROD AND SEALANT

5/4 MDF INT. TRIM

MOISTURE BARRIER, SHOWN DASHED.

CONT. INTO OPENNING

WINDOW HEAD, RE: STRUC

EXT. WALL SHEATHING

1/2" T-111 SIDING

EXT. WALL SHEATHING

1/2" T-111 SIDING

EXT. WALL SHEATHING

1/2" T-111 SIDING

DOOR

WOOD DOOR FRAME

ASSEMBLY BEYOND

METAL THRESHOLD

WALL STUD FRAMING

INTERIOR WALL FINISH

DOOR

1X4 MDF TRIM, PAINTED

HEAD FRAMING, RE: STRUC

INTERIOR WALL FINISH

DOOR

1X4 MDF TRIM, PAINTED

DOOR

WOOD DOOR FRAME

ASSEMBLY BEYOND

METAL THRESHOLD

1/2" EJ MATERIAL

1X4 EXT. TRIM, TO MATCH (E)

SCHEDULED EXT. DOOR

CONT. BACKER ROD AND SEALANT, TYP.

SHIM AS NEEDED

SCHEDULED EXT. WALL

MOISTURE BARRIER,

SHOWN DASHED,

CONT. INTO JAMB.

EXT. WALL SHEATHING

1/2" T-111 SIDING

1X4 MDF TRIM BD, PAINTED

CONT. SEALANT

1X4 EXT. TRIM, TO MATCH (E)

SCHEDULED EXT. DOOR

CONT. BACKER ROD AND SEALANT, TYP.

SHIM AS NEEDED

SCHEDULED EXT. WALL

MOISTURE BARRIER,

SHOWN DASHED,

CONT. INTO JAMB.

EXT. WALL SHEATHING

1/2" T-111 SIDING

1X4 MDF TRIM BD, PAINTED

CONT. SEALANT

DOOR HEADER, RE: STRUC

DOOR HEAD FRAMING

RE: STRUC.

INTERIOR WALL FINISH

BACKERROD AND SEALANT

(E) WALL

(E) HEADER

NEW GYPSUM BOARD

PATCH AND REPAIR

TO EXISTING

2HR RATED WALL

ASSEMBLY

2X WOOD FRAMING

RE: STRUC.

INTERIOR WALL FINISH

H.M. FRAME

GROUT SOLID

BACKERROD AND SEALANT

(E) WALL

(E) HEADER

NEW GYPSUM BOARD

PATCH AND REPAIR

TO EXISTING

2HR RATED WALL

ASSEMBLY

WOOD DOOR

H.M. FRAME

GROUT SOLID

WOOD DOOR

REMOVE (E) EXT. TRIM

REMOVE (E) WINDOW

REMOVE (E) INT. TRIM

(E) WALL

NEW GYP BD - PATCH AND

REPAIR - PAINTED

NEW 2X FRAMING @ 16" O.C.

W/ R21 BATT INSULATION

NEW EXTERIOR SIDING

TO MATCH EXISTING

OVER BUILDING PAPER

ON EXT. SHEATHING

REMOVE (E) EXT. TRIM

REMOVE (E) WINDOW

REMOVE (E) INT. TRIM

(E) WALL

NEW GYP BD - PATCH AND

REPAIR - PAINTED

NEW 2X FRAMING @ 16" O.C.

W/ R21 BATT INSULATION

2HR RATED WALL

ASSEMBLY

G R

E I

TE FO

Bend, Oregon

ER AR

REGO

TJames B. Landin I

SHEET TITLE

PROJECT:

DRAWN BY:

CHECK:

497 SW Century Drive Suite 105 Bend, OR 97702 Tel. 541.330.6506 admin@ggl-arch.com

CONSULTANTS

T C

A D

2010/04/26

H W

A Y

O N

100% SET

2010/05/06100% SET Revised

2" 6"

2 1/2"

F.O. (N) STUD TO F.O. (E) STUD

2" 6"

2 1/2"

F.O. (N) STUD TO F.O. (E) STUD

2 1/2"

F.O. (N) STUD TO F.O. (E) STUD

2 1/2"

F.O. (N) STUD TO F.O. (E) STUD

2 1/2"

F.O. (N) STUD TO F.O. (E) STUD

2 1/2"2 1/2"

F.O. (N) STUD

TO F.O. (E) STUD

F.O. (N) STUD

TO F.O. (E) STUD

G Y

1 12"1 12"

6" M

3 1/2"

0941_A902_Details

13 09 01

14 10

15 11

16 12

TYP. FOUNDATION DETAIL

2 HR WALL ASSEMBLY @ (E) ROOFLOW WALL CAP

2 HR WALL ASSEMBLY @ (N) ROOF

TYP. ROOF EAVE @ WALL 2 HR WALL ASSEMBLY @ (E) ROOF

TYP. ROOF EAVE@ FASCIA ROOF RAKE @ 2 HR WALL ASSEMBLY

SCALE: 1 1/2" = 1'-0"

SCALE: 3" = 1'-0"SCALE: 3" = 1'-0"

SCALE: 3" = 1'-0"

SCALE: 3/4" = 1'-0" SCALE: 3" = 1'-0" SCALE: 3" = 1'-0"

SCALE: 3" = 1'-0"

SCALE: 3"=1'-0" SCALE: 3"=1'-0" SCALE: 3" = 1'-0"

GGL

A902

2 HR WALL ASSEMBLY @ (N) CEILING

SCALE: 1 1/2" = 1'-0"

SCALE: 3" = 1'-0"

06 2 HR WALL ASSEMBLY @ MECH. LOFT

SCALE: 3" = 1'-0" 02

08 FOUNDATION @ (E) BUILDING

SCALE: 1 1/2" = 1'-0"

FOUNDATION @ (E) BUILDING

TYP. HAND RAIL SUPPORT

GABLE TRUSS @ ROOF RAKE

SIDING AT EXTERIOR CORNER

SIDING AT INTERIOR CORNER

SCALE: 3/4" = 1'-0"

SCALE: 3" = 1'-0"

SCALE: 3"=1'-0"

TRIM @ SOFFIT

TRIM @ SOFFIT / BEAM

TRIM AT SOFFIT / BEAM

20 SCALE: 3/4" = 1'-0"

LANDING @ RAMP

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. FROM RAKE TO

36" INSIDE EXT. F.O. BUILDING

PPM FLASHING

ROOF SHEATHING,

RE: STRUC.

CONT. SEALANT

2X8 FASCIA BOARD

1/2" T-111 SIDING PANEL

MOISTURE BARRIER,

SHOWN DASHED

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

ROOF TRUSS, RE: STRUC.

1/2" T-111 SIDING PANEL

MOISTURE BARRIER,

SHOWN DASHED,

LAP OVER FLASHING AND

ICE AND WATERSHIELD

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

ROOF TRUSS, RE: STRUC.

PPM FLASHING

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. UP WALL 12" TO

36" INSIDE EXT. F.O. BUILDING

(E) ROOF SHEATHING

(E) WALL SHEATHING

AND SIDING

(E) ROOF FRAMING

DEMO ALL (E) ROOFING AND WATERPROOFING

DOWN TO (E) ROOF SHEATHING AND REPLACE

WITH (N) ROOFING ASSEMBLY AS SHOWN,

DEMO (E) RAKE TO ALLOW FOR (N) WALL AS REQUIRED.

1/2" T-111 SIDING PANEL

MOISTURE BARRIER,

SHOWN DASHED,

LAP OVER FLASHING AND

ICE AND WATERSHIELD

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

ROOF TRUSS, RE: STRUC.

PPM FLASHING

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. UP WALL 12" TO

36" INSIDE EXT. F.O. BUILDING

(E) ROOF SHEATHING

(N) WALL SHEATHING

AND SIDING TO MATCH (E) BELOW

(N) ROOF FRAMING, RE: STRUC

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

(E) CEILING

(E) WALL SHEATHING

AND SIDING

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

ROOF TRUSS, RE: STRUC.

(E) WALL SHEATHING

AND SIDING

R-38 BATT INSULATION

5/8" TYPE 'X' GYP. BD CEILING

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

FLOOR SHEATHING, RE: STRUC.

(N) WALL SHEATHING

AND SIDING TO MATCH (E) BELOW

(N) ROOF FRAMING, RE: STRUC

2X LEDGER, RE: STRUC.

5/8" TYPE 'X' GYP. BD CEILING

SCHEDULED EXT. WALL

(N) ROOF FRAMING, RE: STRUC.

(E) EXT. WALL

(E) ROOF FRAMING

DEMO ALL (E) ROOFING AND WATERPROOFING

DOWN TO (E) ROOF SHEATHING AND REPLACE

WITH (N) ROOFING ASSEMBLY AS SHOWN,

DEMO (E) EAVE TO ALLOW FOR (N) WALL AS REQUIRED.

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

(E) WALL SHEATHING

AND SIDING

(E) WALL

(E) MECH DUCT

(E) STEM WALL AND FOOTING

MOISTURE BARRIER, SHOWN DASHED

(2) LAYERS 5/8" TYPE 'X' GYP BD.

EACH SIDE OF WALL FRAMING

SCHEDULED EXT. WALL

(E) WALL SHEATHING

AND SIDING

(E) WALL

(E) MECH DUCT

(E) STEM WALL AND FOOTING

4" COMPACTED GRANULAR

BASE MATERIAL, MIN.

2" RIDGID INSULATION

4" CONC. SLAB ON GRADE,

RE: STRUC.

MOISTURE BARRIER, SHOWN DASHED

FILL CAVITY W/ RIDGID

INSULATION

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. FROM RAKE TO

36" INSIDE EXT. F.O. BUILDING

PPM FLASHING

ROOF SHEATHING,

RE: STRUC.

CONT. SEALANT

2X8 FASCIA BD.

EXPOSE RAFTER TAIL

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. FROM RAKE TO

36" INSIDE EXT. F.O. BUILDING

ROOF SHEATHING,

RE: STRUC.

1/2" T-111 SIDING PANEL

MOISTURE BARRIER,

SHOWN DASHED

SCHEDULED EXT. WALL

ROOF TRUSS, RE: STRUC.

R-38 BATT INSULATION

2X12 BLOCKING W/ (3) 3" DIA.

VENTILATION HOLES W/ BIRD SCREEN.

1X4 TRIM BD

CONT.

SEALANT

4" COMPACTED GRANULAR

BASE MATERIAL, MIN.

2" RIDGID INSULATION

4" CONC. SLAB ON GRADE,

RE: STRUC.

STEEL PIPE

HANDRAIL (PTD.)

GRIND ALL WELDS

SMOOTH;SEE SPEC

PTD. RAIL BRACKET

ANCHORED TO WALL

PER MANUF. INSTR.

TO SUPPORT A 250#

LOAD

PROVIDE 2X8 BACKING

@ ATTACHMENT

3' -0

O . F

O R

SCHEDULED WALL

FINISH

4" COMPACTED GRANULAR

BASE MATERIAL, MIN.

2" RIDGID INSULATION

4" CONC. SLAB ON GRADE,

RE: STRUC.

MOISTURE BARRIER, SHOWN DASHED

SCHEDULED EXT.

WALL

WOOD BEAM

SEE STRUCTURAL

2X LOOKOUT

5/4 X 4 WOOD TRIM

PPM FLASHING W/

DRIP EDGE

ROOF SHEATHING

2X8 FASCIA,

PAINTED.PAINT UNDERSIDE

OF DECK AND

OUTLOOKERS

PLASTIC GUTTER

PPM ROOFING

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

ICE AND WATERSHIELD,

SHOWN DASHED,

CONT. FROM RAKE TO

36" INSIDE EXT. F.O. BUILDING

1/2" T-111 SIDING PANEL

EXTERIOR STUD WALL

SHEATHING

MOISTURE BARRIER

BOARD & BATTEN OR

LAP SIDING

CAULK JOINT

WOOD TRIM

CAULK JOINT

BOARD & BATTEN OR

LAP SIDING

MOISTURE BARRIER

EXTERIOR STUD WALL

INTERIOR GYP. BD.

1X4 WOOD TRIM

CAULK JOINT

SHEATHING

MOISTURE BARRIER

BOARD & BATTEN

OR LAP SIDING

CAULK JOINT

BOARD & BATTEN

OR LAP SIDING

MOISTURE BARRIER

INTERIOR GYP. BD.

SCHEDULED EXTERIOR

WALL

(2) LAYERS 30# ROOFING FELT,

SHOWN DASHED,

CONT. OVER FLASHING AND

ICE AND WATERSHIELD

1X6 WOOD TRIM

1X4 WOOD TRIM

1/2" SOFFIT BD.

2X FRAMING

SEE STRUCTURAL

WOOD BEAM

SEE STRUCTURAL

1X4 WOOD TRIM

1/2" SOFFIT BD.

2X FRAMING

SEE STRUCTURAL

1/2" T-111 SIDING PANEL

R21 BATT INSULATION

WOOD BEAM

SEE STRUCTURAL

1X6 WOOD TRIM

1X4 WOOD TRIM

1/2" SOFFIT BD.

2X FRAMING

SEE STRUCTURAL

1/2" T-111 SIDING PANEL

R21 BATT INSULATION

PPM FLASHING

2X FRAMING

GYB BD. EACH SIDE

1X4 WOOD TRIM - PAINTED

2X WOOD CAP - PAINTED

2X DOUBLE TOP PLATE

5' 6"

(E) STEM WALL AND FOOTING

4" COMPACTED GRANULAR

BASE MATERIAL, MIN.

2" RIDGID INSULATION

4" CONC. SLAB ON GRADE,

RE: STRUC.

MOISTURE BARRIER, SHOWN DASHED

NEW F.F.

EXSIT F.F.

NOT USED

CONC. SLAB OVER EXISTING

RE: STRUC.

PPM ROOFING

G R

E I

TE FO

Bend, Oregon

ER AR

REGO

TJames B. Landin

GGL

AD201

0941_AD201_DEMO FLOOR Plan

O F

DEMO

FLOOR PLAN

SCALE: 1/8" = 1'-0"

EXISTING BUILDING

TO BE RELOCATED

ATLATER DATE

(NIC)

EXISTING WALL TO BE REMOVED

EXISTING DOOR TO BE REMOVED.

EXISTING PLUMBING FIXTURE TO BE REMOVED. CAP PLUMBING AS

REQUIRED.

EXISTING ROOF EAVE TO BE REMOVED.

KEYNOTES

PROPOSED

BUILDING ADDTION

LEGEND

EXISTING WALL TO REMAIN

EXISTING TO BE REMOVED

EXISTING WINDOW TO BE REMOVED.5

EXISTING STAIR AND HANDRAIL TO BE REMOVED. BY OWNER.6

EXISTING DECK

TO BE REMOVED AT

LATER DATE

(NIC)

EXISTING BUILDING

TO BE RELOCATED

ATLATER DATE

(NIC)

EXISTING RAMP AND HANDRAIL TO BE REMOVED. BY OWNER.7

REPAIR OR REPLACE GUARDRAIL. BY OWNER. (SHADED AREA)8

NEW STAIR AND HANDRAIL. BY OWNER. (SHADED AREA)9

EXISTING SINK TO REMAIN.10

DATE

PROJECT NAME

SHEET TITLE

PROJECT:

DRAWN BY:

CHECK:

497 SW Century Drive Suite 105 Bend, OR 97702 Tel. 541.330.6506 admin@ggl-arch.com

CONSULTANTS

T C

A D

2010/04/26

H W

A Y

O N

100% SET

2010/05/06100% SET Revised

G R

E I

TE FO

Bend, Oregon

ER AR

REGO

TJames B. Landin

SHEET TITLE

PROJECT:

DRAWN BY:

CHECK:

497 SW Century Drive Suite 105 Bend, OR 97702 Tel. 541.330.6506 admin@ggl-arch.com

CONSULTANTS

T C

A D

2010/04/26

H W

A Y

O N

100% SET

2010/05/06100% SET Revised

GGL

AI201

0941_Ai201_Asbestos FLOOR Plan

C A

A S

ASBESTOS INDENTIFICATION

FLOOR PLAN

SCALE: 1/8" = 1'-0"

ASBESTOS INDENTIFICATION CEILING PLAN

SCALE: 1/8" = 1'-0"

1 EXISTING WALL TO BE REMOVED

KEYNOTES

PROPOSED

BUILDING ADDTION

LEGEND

EXISTING FLOOR TILE TO BE TESTED FOR ASBESTOS, TO

DETERMINE IF MATERIAL IS TO BY REMOVED, ENCLOSED OR

ENCAPSULATED.

PROPOSED

BUILDING ADDTION

ASBESTOS ABATEMENT FIRMS

ASBESTOS TESTING FIRMS

GENERAL NOTES

Asbestos Abatement:

Asbestos was extensively used in building construction from the 1930s to the 1970s. In the mid-1970s, after exposure to asbestos was linked to certain types of cancer, the use of asbestos was discontinued in almost all building-related applications. Asbestos is a material that should be treated cautiously; improper or hasty removal of asbestos can often cause more problems than leaving it alone.

Dangers of Asbestos Asbestos is a generic name for a variety of strong and flexible mineral materials that are chemically inert, highly resistant to heat and virtually indestructible.

Asbestos presents a health hazard when it is friable, that is, when it is crumbled or crushed into a powder. Microscopic fibers of asbestos have about the same density as cigarette smoke. When these fibers are released into the air, they can be easily inhaled and either swallowed or trapped in the lower part of the lungs.

The first step in dealing with asbestos is to have a certified inspector determine where it is located in your building and then to assess its condition. Asbestos is present, in one form or another, in most buildings built between 1930 and 1975.

It also shows up in many older buildings that had been repaired or altered during this period.

It most commonly was used to insulate pipes and boilers. However, asbestos was also often mixed in with stucco, plaster, cement, wallboard, ceiling and floor tiles, acoustical tile, asphalt roofing shingles and tile, vinyl tiles, fireproof textiles, wallpapers, grouts and caulking compounds as a binder and fireproofing material.

Some materials are marked as containing asbestos, but if there is no obvious indication of asbestos, and the material is of an age and type that is likely to contain asbestos, assume that is does. If necessary, the material can be lab-tested for the presence of asbestos. Contact the closest office of the U.S.

Environmental Protection Agency (EPA) for more information on asbestos testing.

Once the inspector has identified the location of the asbestos in your building, the second step is to develop an abatement plan. Asbestos abatement refers to the process of removing or minimizing the health hazards of asbestos in a building through a number of prescribed actions including removal, enclosure, encapsulation or an operations and maintenance plan.

Until recently, many experts recommended that all asbestos-containing materials be removed from buildings as a matter of course. Now the EPA and others suggest that the material can remain in place if it is in good condition, provided there are no compelling reasons to remove it, such as a renovation project or plumbing alterations.

Removal Asbestos abatement by removal means that asbestos-containing materials are totally removed from the building. A common example of this would be the removal of asbestos pipe wrapping and insulation from heating pipes. The most obvious advantage of this type of asbestos abatement is that once it is gone, the need for further monitoring or maintenance of the asbestos-containing materials is eliminated.

However, the initial cost of complete abatement is usually high and the replacement of the asbestos with substitute materials performing the same function will be necessary, further adding to the cost. In addition, the asbestos must be carefully and properly removed so that the risk of asbestos exposure is minimized. If you elect to remove the asbestos, be sure that the removal is done properly.

Before hiring an asbestos contractor, verify that the firm is licensed by your state or municipality to perform asbestos abatement projects. As with all building projects, you should also carefully examine the contractor's references and previous record for safety or code violations.

Be sure that the contract clearly states that the work will be done in accordance with all federal, state and local laws, and that the contractors are performing the work with equipment that complies with U.S. Occupational Safety and Health Administration (osha) standards. A conventional renovator's mask, for example, will not screen out asbestos particles. The filters in common household or industrial vacuum cleaners are inadequate for the same reason, and they will throw asbestos fibers into the air. (For further guidance on proper equipment, contact the EPA.)

The contractor should isolate the portion of your building where the asbestos removal is taking place with sheets of plastic, and provide self-contained showers and throwaway protective suits to prevent contamination of the workers. All asbestos-containing materials need to be bagged in plastic, and proper disposal must be arranged. It is against the law to dump asbestos-containing materials in general dumps or land-fills.

An important aspect of asbestos-removal is air-monitoring by an inspector who is at the site throughout the project. The firm monitoring the project should always be completely independent of the contractor performing the work. This independent firm should set up an air monitoring station to ensure that the concentrations of asbestos fibers outside the work area do not increase appreciably during the project. Use the same standards for hiring the monitoring firm that you use for hiring the contractor.

Do not, under any circumstances, remove asbestos yourself. Asbestos is highly dangerous when it is airborne. It is far more dangerous to remove asbestos improperly than to leave it alone, no matter what its condition.

Enclosure Given the high initial cost of asbestos removal, many building owners elect to deal with asbestos in a less aggressive manner. One alternative to removal is to enclose the asbestos-containing material in airtight new construction. A common example of this is to enclose asbestos-insulated pipes with sheet-rock or plaster construction, forming, in effect, a pipe chase.

The main advantage of this treatment is that it does not require the replacement of the asbestos with a substitute material. The initial cost for enclosure is usually far less than for complete removal, although the long-term costs may be higher. The disadvantage of enclosure is that the asbestos remains and will eventually need to be removed.

Because asbestos fibers will continue to be released behind the enclosure, access to the area for maintenance and renovation will need to be controlled.

Periodic re-inspection to check for damage will also be required.

Lastly, care must to taken during construction of the enclosure to prevent the release of asbestos fibers. As with removal, an air-monitoring firm should be hired to check for any fiber release during construction.

Encapsulation A second alternative to removal is encapsulation. The treatment requires that the surface of the asbestos-containing materials be laminated or covered over with new materials or painted coatings. The most common example of this treatment is the covering of asbestos floor tile with new, sheet vinyl tile. Like enclosure, this treatment minimizes the release of asbestos fibers without the necessity of removing the material.

Encapsulated asbestos must be closely monitored to ensure that no significant fiber release is taking place. Any damage or deteriorated encapsulated surface should be repaired immediately. A disadvantage to encapsulation is the increased difficulty of total removal of the asbestos when this becomes necessary. Lastly, the long-term costs may be higher than for immediate removal.

Special Operations (Monitoring and Maintenance) The last option is to leave the asbestos-containing material in place, provided there is no evidence that asbestos fibers are being released. For example, if you have a roof composed of asbestos shingles, it may be reasonable to leave the shingles in place and set up regular inspections to check for evidence of deterioration. The main advantage of this treatment is that it has the lowest initial cost of any abatement alternative. However, the asbestos source remains and periodic inspection will be required to assess the condition of the material and its potential for erosion or disturbance.

Conclusion Asbestos-related problems in older buildings should be addressed in a rational manner. Ignoring the potential problems of asbestos is irresponsible, but careless and hasty removal without proper safety precautions is also irresponsible, and can lead to even greater problems. The best course of action is to identify asbestos-containing materials in your building, ascertain their condition and then develop an abatement plan that addresses any hazardous or potentially hazardous conditions in a deliberate and responsible manner.

CHECK LIST FOR DETERMINING CONTRACTOR QUALIFICATIONS

1. Regardless of how you may feel about a particular contractor, always ask for a list references from previous projects. That list should include persons willing to describe the reliability of the contractor and the quality of work performed by the contractor.

2. All asbestos contractors must have an Oregon DEQ asbestos abatement license and use only Oregon certified workers and supervisors.

3. You may also want to ask your contractor to provide air-monitoring data from previous projects done in accordance with Oregon OSHA or Oregon DEQ requirements. That information can also help you determine if the work habits and general procedures that contractor uses are acceptable.

4. All contractors must have written standard operating procedures and employee protection plans which include specific reference to Oregon OSHA medical monitoring and respirator training programs. In addition, the contractor must make available a copy of the Oregon OSHA and the DEQ asbestos rules.

(Oregon rules: under OAR 340-248-0005 through - 0290.)

5. Contractors must also provide a list of any penalties that the contractor has paid due to not completing contractual requirements, because of cost overruns, and/or liquidated damages.

6. Any citations levied against the contractor by any Federal, State, or local government agencies for violations related to asbestos abatement should be identified by the contractor. Included with that information should be the name or project location, the date(s) of the project, and how the allegations were resolved.

7. Contractors should also supply a description detailing all legal proceedings, lawsuits, or claims that have been filed or levied against them or any of their past or present employees for asbestos related activities.

8. The contractor should also supply a list of all equipment that will be used for asbestos work. That list should include negative air machines, HEPA vacuums, the type of respiration equipment they will use, scaffolding, decontamination facilities, disposable clothing, etc.

Hemphill Green & Associates Bend, OR 97701 541-549-1966

PBS Engineering + Environmental 390 NE Emerson Ave, Ste C Bend, OR 541-388-9290

Paulsen Environmental Consulting 541-389-5481

Alpine Abatement Associates, Inc.

PO Box 1557 Bend, OR 97709

(541) 388-2672

Cascade Insulation, Inc.

22356 Nelson Road Bend, OR 97701

(541) 388-2600

EXISTING CARPET OVER FLOOR TILE TO BE TESTED FOR

ASBESTOS, TO DETERMINE IF MATERIAL HAS BEED ENCLOSED OR

ENCAPSULATED PROPERLY OR IF IT IS REQUIRED TO BY

REMOVED, ENCLOSED OR ENCAPSULATED.

EXISTING CEILING TILE TO BE TESTED FOR ASBESTOS, TO

DETERMINE IF MATERIAL IS TO BY REMOVED, ENCLOSED OR

ENCAPSULATED.

EXISTING GYPSUM BOARD CEILING

G R

E I

TE FO

Bend, Oregon

ER AR

REGO

TJames B. Landin

File details come from the government source that posted it. Updated Nov 14, 2017.